diff options
| author | Miles Bader <miles@lsi.nec.co.jp> | 2003-09-17 11:50:18 +0000 |
|---|---|---|
| committer | Miles Bader <miles@lsi.nec.co.jp> | 2003-09-17 11:50:18 +0000 |
| commit | f32264c80281c3ff98ad8cfdb7b9ba4c97602e83 (patch) | |
| tree | 309dd1fb6470ad89b5dc3668ab335327e5d7ff7a /libc/stdlib/malloc/heap.h | |
| parent | 5e16460b41558637332877d5c69596760fb02832 (diff) | |
Make sure static heaps are aligned correctly.
Diffstat (limited to 'libc/stdlib/malloc/heap.h')
| -rw-r--r-- | libc/stdlib/malloc/heap.h | 20 |
1 files changed, 11 insertions, 9 deletions
diff --git a/libc/stdlib/malloc/heap.h b/libc/stdlib/malloc/heap.h index 2d6d55fd8..13e37ea6c 100644 --- a/libc/stdlib/malloc/heap.h +++ b/libc/stdlib/malloc/heap.h @@ -1,8 +1,8 @@ /* * libc/stdlib/malloc/heap.h -- heap allocator used for malloc * - * Copyright (C) 2002 NEC Corporation - * Copyright (C) 2002 Miles Bader <miles@gnu.org> + * Copyright (C) 2002,03 NEC Electronics Corporation + * Copyright (C) 2002,03 Miles Bader <miles@gnu.org> * * This file is subject to the terms and conditions of the GNU Lesser * General Public License. See the file COPYING.LIB in the main @@ -24,7 +24,8 @@ /* The heap allocates in multiples of, and aligned to, HEAP_GRANULARITY. HEAP_GRANULARITY must be a power of 2. Malloc depends on this being the same as MALLOC_ALIGNMENT. */ -#define HEAP_GRANULARITY (sizeof (double)) +#define HEAP_GRANULARITY_TYPE double +#define HEAP_GRANULARITY (sizeof (HEAP_GRANULARITY_TYPE)) /* A heap is a collection of memory blocks, from which smaller blocks @@ -74,12 +75,13 @@ struct heap_free_area /* This rather clumsy macro allows one to declare a static free-area for passing to HEAP_INIT_WITH_FA initializer macro. This is only use for which NAME is allowed. */ -#define HEAP_DECLARE_STATIC_FREE_AREA(name, size) \ - static struct \ - { \ - char space[(size) - sizeof (struct heap_free_area)]; \ - struct heap_free_area _fa; \ - } name = { "", { (size), 0, 0 } } +#define HEAP_DECLARE_STATIC_FREE_AREA(name, size) \ + static struct \ + { \ + HEAP_GRANULARITY_TYPE space[((size) - sizeof (struct heap_free_area)) \ + / HEAP_GRANULARITY]; \ + struct heap_free_area _fa; \ + } name = { { (HEAP_GRANULARITY_TYPE)0 }, { (size), 0, 0 } } /* Rounds SZ up to be a multiple of HEAP_GRANULARITY. */ |